Process of burning solid fuel.



o. B. EVANS.

PROCESS 0F BURNING SOLID FUEL.

APPLICATION FILED JAN, 3'. I9I6l v ownnsncomnrfnns, lor nensnowns, :ermnsrrvnirm essreneero ran muren ons meenemen confermi?, orfrnrmnnrrnre, rmmsrrvenne, .e Corleone Leon or 'rne'rrsrnvnm esonero.'

rnocnss or nomme sorm me.

"speeireefi'oiers rammel v Patented May 2S, 1918; Y

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To clim/"wm t may consom.' ,i

Be 1t known that l, @WN BROOKE EVANS,

v a ciizen o'Llm'United States, yresiding at Lansdowne, in the county of Delaware end State of Pennsylvanie, have invented a new and useful Processor Burning` Solid Fuel, of Whirhy the following is a specification,

The process of fthe present inventionis applicable not onljy'fo 'die furnaces of gos producers ,in which combustionr is incomu plete end from which gos 'generated is lcd away, but also "to other-furnaces in which combustion iscomplete.

The prinoipzil object' of hc present invention is to prevent-ille adherence of @linker-to the side wall of-'thefurnace and thereby per of the eesyircleaningqoftlle re,r

In one Woyofprectising the invention a 'burning fuel bed isfcd Vthrough a. furnace enel superposeilregons Where-ash would and would not fuse'ere' created end maintainedin elle burnino fuel bed` by appropriate blast control including, if desired, 'the use ,ofoo'olargents.` In passing from one of ehese regions tcthewother, clnker goes through e temperature zone o solidilicetion and if un-` consuzned fuel or carbon goes through this cone in edmixtnre or association Wih the elnker, it' prevens the letter from solidifying or egglutineting into large messes, bui,

ii; does not prevent the clinlrer insolidiying from adhering ro elle furnace wells. To

, prevent; the eolidijying-clinker from adhering to i'he eide Weil of the furnace in ec-` cordence 'with the mvcntion, space 1s provided end maintained; between the lateral surface of elle fuel 'ned and elle surface of the furnace side well in ,the *.fici'niyr of elle teraznre zone of "solidiceon, and A this. is done by separe-eilig the surfaces of elle furwz-ll end ofthe fuel ned et elle tempera rid 1g against Contact between the furnace Iend "the lateral surface of the fuel and by approprietelar;eonizrollingy elle f end Vits application to the fuel bed in one. of clinker solidification, rinus pro-' o rnein'oinlliereinpereture,none of eine; soliflilicetion el: lie pieoewiiere suoli` separation occurs. Thereafter the carbon or uneonsumed fuel which was carried along with one edmlxture enterm the zone or re# gionV where the clinlrer` so idil'ies, may be'- burned ouihus leaving the olinkcr in suchv divided condition that it can be readily ree moved to clean the lire. 1

A 'Broadly speelng, the invention cculsists'` ,inpreventing be adherence of cli'nler to elle Walls of the'urnecezby providing end xnainennggspece between the surface of the furnace side Welland the surface of the fuel bed in the neighborhood of the tempereture zone of solidicetion of clinkenby' passing the solidifjying clinker out of conl tact with the furnacek 'side Well, yand che ino 'vention also consists' in controlling 'the loca,-y tron oi this temperature zone by appropriate'iA bles@ control and application, the Mescheinos applied either by suction or pressure.

4lhe invention-Willy be claimed at the end hereof but will be firstndescribed in con` i neclzion with apparatus suitable for its practice and illustrated in she accoinpenying,4v

drawings in which-f Figure is en `elevationel View, princiV pelly in section, of one type oi' furnace or producer.

Fig. 2, is a similar view'of e, generator orI furnace of a Water gas apparatus.

lFig 3, is e similar view of another type ,of e generator or furnace of ,e lWeier gas ep-y paretus.

Fig. 4, is a, similar View illustrating ,e Y

modicetion capable of embodiment in ef furnace useful in the `ion, and Y Fig. 5, is a sectional View teken on the lme practice of the inven` 5-5, of Fig. e, looking upward.

ln the drawings 1,1se furnace, 2, o. fuel intake, 3, er grate, and 4, cleening'doors. 5, indicates e region 1n which ash ruses, and '6,

indicates aregion in which clinkeridoes not fuse and et the top of which islooeted e 'temperature zone of soldiication ofolinler,

At this temperature zonev of solidiication of clinker, the fuel is passed,| fed ormade toy travel out of contact with the furnace well,

:was

^ suiface o, of the iuei had. and the surface o, oi the urnace'wali. @ne Way of doingv this is to provide an oset in the furnace, oihosh, i', the purpose ci Twhich is to prevent toe fue). immediateiy below from cominginto contact the furnace 'iT/ail. As shown in Figs, l and 2, this tempera-tune .cone oi ,Soiidiication of clinkei is maintained in the Vicinity oi the passage of theiuel hed out oi? contact with the iuinace Wall by appoi'tioning a divided inlaat in 'the uei bed and in Fig. 3, by changing the direction and application of the gas making duide.

iin Fig. i, 8 and 9, are air connections, ,i6 and 11,' are connections for steam, products of combustion, cooling agents oi' the like, and 13, is an otake for products of com busti-on, tuoi gas, or the like. Aie is ad` mitted heiow the goats through connB tion 8, additionai air being suppiicd through connection 9, to maintain the high temper@ tuiezone 5, steam, products ci combustion oithe like seing admitted thiough lo ci il, as required. By properiy pyopoitioning the aiu, steam, cooiilw agents, productsxof oomhustion, or the K ihe, admitted ceiow the grate 3, and heiow the bosh 7, the temperature oi the fuel hed in the hosh is maintained above the solidication temperature of the ciinkei, and the temperature of the uei hed in contact *with the walls below the cosh 7, is maintained below the soiidiication point of the ciinke, so that the molten ciinkei drawing theough the hash i", is solidified Whiie out o Contact With the iiuinace Wall and. before it airain cornes iut-o Contact with the iiunaee sa l'.

Referring to Fig. 2, the process is as alcove described, and is and i5, are air connections,

and i6, li' and 18, are connections for admitting steam, pi'oducts oi combustion oi' the iilie. 19, 20 and 2l, are valved otake con neotions for `foei gas, products of combustion, and the iike, which are led 'fiom the generator thi'ough connection 22. The hlowi consists in admitting air through connections i4 and l5, and discharging the products throu'h theopen valve 19, into connection 22. x."Ducingthis peiod of iolow, steam, pioducts of combustion, or the like, may he admitted though valve 16 oi' l?, according to the character of fuel used. Dui'- ing the gas making, or run period, the aiivalves is and i5, are closed, and'steam is admitted through vaives 16 or 17, or both, and passes up through the tire and through the open valve 19, into the otake 22. When it is desired toieverse the gas making direction, Valves 16,17 and 19, ane closed, steam is admitted though 18, and escapes sith-e21 thicugh the valve 2G or 2i, into con has, aad the surfaces oi the furnace Wall and nectiou 22, as desi-ed. By means oi? the v auxiliary 'valve 20, it is possible to urthei'ea' to pass out t rough valves 26 or 27, to oonv i nection 2 8. During the run, sam is admitted to 29, the resultant gas leaving through Valve 25, and connection 28, or steam is adinitted th'ough 'Valve 30, the products leav-I ing throughovalves 26 or 27. By changing the direction oi application oi the gas ing uids, and hy taking o the products at Various peints in the fuel hed, the location oi' the temperatue zoues 5, and 6, can he changed as desired.

in practising the pi'ocess ci the invention in connection with the apparatus illustrated '59@ in Figs. L3, a. burning fuel-hed v is ted through a furnace chamber in which there'is oieatedand maintained, for esempio, icy the means described, near the furnace Wal, o. tempesatufe zone Whei'e fused clinker solidioi the 'fuel bed ae separated at this acne, so that the ciinker oi the' fuel hed passing through this zone, soiidii'ies mit oi? contact with the furnace Wall. @This may he ac oomplished hy properiy ptoportionng the ci'oss-seotionai areas oi the furnace and oi? the 'fusi-hectic? sepaiating the susiaces ci the fuel-bed and of the iurnacewali at the temperature sone ci* soiidiiioation oiciinkei in the foei.

Due to high -tempei'ature existing at the i'egion ci tiie hash, this hosh, unless proteeted, may he suhieeted' to wear. The admission oi hiast dii'eetiy below the hosli seives to protect itto some extent. In somo cases, however, it is advisaoie to admit the hiaat to an annule? passage 31, in the interioi of the boah, as shown lin Figs. 4 and 5, the biast escaping through the ports 32. En other eases it may he advisable tewater-soci a portion of this hoch in any oi the Well imown Ways. in the ciaim the term hiaat includes both pressure and suction application.

What i ciaim is: A The process o burning Enel which con sists in feeding a looming fuel-hed' through `a fufnace chamber, establishing' and malutaiuing in the contents oii said chamber ,in supeieposed T eiation an ash fusing 1region and a. @linker sohdiiying and oafbon burning ile ill.

region by a pmpayte Ma cantrojpassing the furnace wa'in 1th@ ci 15k@ em a combusti e gdmlxture or assoclataon of trance the @sh so-'ymg and cambian con'- `rasdue and carbon imm the ash fusing suming legion? ami thereafter burnmg tha m regina tn the @linker soldifyng and carbon carbon out of the admin-,ure in th@ clmkar 5 bmegen and sepaaatng th@ surafzes sdiyng raglan, substmtay as rascrw of the furnace A.F/vs'all ami Gf tl passing adv mixture or asseation by pruvidng space at OWEN 3R96@ EVANS. 

